/*
 * Copyright 2009 Brett Morgan.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.domesticmouse.waveoteditor.server;

import com.domesticmouse.waveoteditor.client.PollService;
import com.domesticmouse.waveoteditor.client.ServerResult;
import com.domesticmouse.waveoteditor.client.ops.GwtClientDocOp;
import com.domesticmouse.waveoteditor.client.wave.model.document.operation.BufferedDocOp;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;

@SuppressWarnings("serial")
public class PollServiceImpl extends RemoteServiceServlet implements PollService {

	@Override
	public ServerResult poll(int fromRevision) {
		BufferedDocOp editsFromVersion = Document.instance.getEditsFromVersion(fromRevision);
		GwtClientDocOp clientDocOp = new GwtClientDocOp();
		clientDocOp.configureFromBufferedDocOp(editsFromVersion);

		ServerResult result = new ServerResult();
		result.setClientDocOp(clientDocOp);
		result.setServerRevision(Document.instance.getServerRevision());
		return result;
	}

}
